Machine for coating wafers



Jam 19 ,1926.

F. G. sALERNO MACHINE FOR COATING WAFHRS '4 Filed Jan. 20, 1921 12Sheet-Sheet 2 1,570,405 F. s. SALERNO CHINE FOR COATING WAFERS FiledJan. 20, 1921 12 She ets-Sheey 3 Ljm rrui Jan. 19 1926.

F. G. SALERNQ MAQHINE FOR COATING wzmms Filed Jan. 20, 1921 12saints-sheet 4 i2 sheethslieet 5 Magr. s. SALERNO IACHINE FOR 051mm;WAFERS' f'il ed Jan. 20, 1921 Jan. 19 1926.

WW W F. G sA ERNo MACHINE FOR 001mm wmsns Jan. 19 1926.

12 sheets-sheet 6 Filed Jan. 20, 192

Jan. 19 1926.

F. 5. SALERNO MACHINE FOR COATING WAFERS Filed Jan. 20, 1921 i2 Sheets-Sheat 7 F. G. SALERNO MACHINE FOR COATING wAFERs Jan. 19 1926.1,570,405

vFiled Jan. 2 1921 12 Sheets-Sheet 8 7:55 I 66 if] 1 A jzyrzfiw #2Mvm'a..d 4, 4

F. G. SALERNO I MACHINE FOR COATING WAFERS 12 sheets-shea 9 Filed Jan.0, 1921 '//////A 'llllllllllllfll- IHIIHIIIIIIIIIIIIIVl/l/l/l/A Jan. 191926.

Z/Mwas:

Jan. 19 {1926. 1,570,405 F. G. SALERNO MACHINE FQR COATING WAFERS FiledJan. 20, 1921 12 Sheets-Sheet 10 F. G. SALERNO MACHINE -130R COATINGWAFER S Filed Jan. 20, 1921 Jam. 19 1926.

12 Sheets-Sheet i1 F. G. SALERNO MACHINE FOR COATING WAFERS Filed Jan.20, 192;

12 Sheets-Sheet 12- I lad, MAW, m.

vent-ion,

Patented Jan. 19, a I i i i ZogaZZ whom it may cancer nu- Be it knownthat it, :Fnnnmnnbofim Sn- LEnNo, citizen-oi thefUnited States, *resid:

in the county 0% Cook and State of '1] iinois; haiv qinventedcertainznew and" useful improvements in Machines' 'for floating Warm,ofw hieh the fioiibwing. is 'a specification.

MV invention relates to :a machine: dea

signed for the commercial productionon a large scale of' Wafers'coa't'ed'on top-withione 'or morej laiyers V of some suitable conie'cQti'o'n, as chocolate -or'sugar icinggajams son jellies; or filledWafers, 7' frequently terined in the- "wholesale bakery trad'e-':sandw1ch goods ctniisisting of one or more 'l ayersfof suchconfections interposed between top and bottom Wafers. MW machine belongstoytheclassin which the confection is app lied toli the previously-bavkect wafers; through I the "action of a scraping memherorfblade'arranged to' force' the-;materia1' through ;a series of onto the faces:of. cakes: presented to such openings. It is the general object ofiinyinvention to: p nevi-file a durabla eflicient machine; adapted lor"continuous, "hard, service and capableoif producing rapidly andecononiicaily a lange vaniety of products 1 of 3 thecharacter mentioned;anti "to; this end: I iiavedevised'and invented ithe novel coatingamt-filling machine hereinafter :described.- and 1186151! organizationand combination of cooperating p alrt's and; elements which "make upsuch machine, and arrangement snbcomb'inati a lid in mail ens "featuresof? nevelty: anti 'n'tility inthe constrliction. an i' 'arrangementlofparticularparts incidental to the main purpose and-objectof-v'niyinvention. lntwthey appended claims, 1 have .ino e} particularlyj' pointed outtheaesselfiiiai elementsofxiny "I i it being nnd'erst od;liowever;rthat m ion-making "e" aml fille v sip ain: bniefly iitsigene,l Tci-i'ghniization l11{"1TIfGi= Of my inyentiont is capahle of beingembodied in other and chifijerentr i'orms: than thet-p articularem'bofliinent 11,el ein'afterv described, 1 "and "that"suchoiiainmaneintenfled to embrace i 1 variation's 3111imodificationsofffonfni land 1 structure. which are eqniivaJeilt to: theoonv strnctionzdescribed sand wli'ici-l inclncie ithe-=;

f spirit andu'sg bsteirrce of myiiinventionz Invth e a is .ofthe same;

and am them, on mer r sca1e th an-"tha tzoffiFigi-8, f a the'zuppzerfsheet meta-lispar-ts ofthe hoppers 7 anjdw-ztheLmech'anismarranged1':therein,?belt and inarts. 'thereh'e'low eemgz-omma; Fig.

'l 'isi-"a' View .ofthe fonwardgportionfof the.

stencil 'op'enings in a thin pliate- X I v vrixght handwside"- ofthequachine, on alarger My invention resides the new 1 1 ing "the v"openings .of the-twoicoating ."I'nechanisfm's;t and litioni :61 a: "camemployed in {the rinechanism fo1upressing the cos er cakes dowfri'fupon'the s'iboiieracakesi I .f v

The; samewreerenee characters indicate the: same partsdnaail: thefigiires' ofiythie drawin the .noyel constructionofthe' elements ot,various ns ofipants employedtherein,

L ,g mAG-Q; minors;

seriaitimnsass g 6 is a top, plain isia' longitudi- 3; Fig; 18 113 arsair-long base ortionsfgof th z-two zoonfeiiti on hoppers scale thanFig1, showing:alsoi connections 'of-la 'cross "frameandpmtes' secured -tothe boating; mechanism F$i gs.5. 1 6 and 17. are are spectively side and-ie'ndrviews OfthQ same; Figs; 18 amt 1 9 are comparative views 'show- 7difference 1 in the size zof the stencil f Fig. 20 is a detail showingthe constnucroee'eding 1 was st consignuetiomis; arrangedmo' siippiil anintermachineand pas'slng around'ismd drumand,

eb e e r-client the ma hi p s married 'byl-andias'soeittfied with; I.

ifor'operating the? carrier and delivery 'belts i 14 isFaperspectivegview of the :mechanis'nii for i pres'sin'g; the", coverxcakes clown on the coated cakes; Fig; 115 qisat0p plan view li'ottomthereof forming. a portion-of the' cakes.

around a narrow stretcher bar.. Above the upper reach this belt, at thefront end of the machine, is arranged a magazine consisting of atransverse row of vertical cake receptacles, and, associated with themagazine, a feeding mechanism adapted to deposit successively upon thebelt, during the closing part of each feeding movement of the belt,

a row of cakes to be coated with a plastic confection. By theintermittent movements of the belt the rows of cakes are carriedrearwardly through the-machine, and during their periods of rest arecaused to stop in vertical alignmentwith the stencil openings of twocoating mechanisms, successively, at which periods the belt is liftedand the two rows of cakes in alignment with the two rows of stencilopenings are respectively carried into registration with the openings,whereupon the coating is applied by the reciprocation of a pair ofconnected open-bottom confection hoppers sliding across the respectiverows of stencil openings. The forward hopper, which is intended forapplying arelatively thick or heavy confection, is provided with feedrollers and reciprocating feed plates for forcing the confection intothe stencil openings at the time when the hopper passes over them toapply a coating and both hoppers are equipped with sets of I knock-outpins for positively forcing the coated cakes away from the'stencilopenings as the belt lowers at the end of a coating stroke of thehoppers.

i A rising and falling frame equipped with a rectifying or aligningmechanism for each coating mechanism is provided, this frame consistingof connected longitudinal members and notches cross plates or stop barswhich are adapted to cooperate with the rear edges of the cakes and actas stops for the rearwardly moving cakes during the closing portion ofeach I intermittent belt movement, and thus cause the cakes to bring upin accurate alignment with the stencil openings. 4 Y

After passing rearwardly from the second coating mechanism, the coatedcakes pass underneath a second cake magazine having a feeding mechanismby which a row of cover cakes is deposited on the coated This actionoccurs just at the moment before the apron comes to a dead stop, and thesandwiched cakes bring up against a ,notched aligning bar which isconnected to the rising and falling frame and is of such thickness as toalign both thetop and bottom cakes together. A row of pressure membersthen descends upon the top cakes to press them gently down upon thelower cakes a limited distance, and the cakes are then carriedrearwardly bythe intermittent belt movements and discharged upon trayscarried by a second belt for removal and-packing. 7 r

Describing now more in detail the parts of the machine, the machineframe includes a pair of opposite right and left side frame membersmarked respectively 1 and 2, each formed with end posts and an upper andlower sidebar; forward and rear crossplates 3 and 4t; a tubularcross-member 5 adjacent the top of the rear leg portions of the sideframe members; and various cross rods and other cross members serving tounite and secure the side frame members together and aflord a supportfor the movable parts of the machine. Among these members are tworectangular cross-frames 7, which form part of the coatinglmechanismhereinafter described and which are bolted to pairs of posts 6 formed onthe upper side bars of the frame.

Extending rearwardly of the frame struc-' ture just described, andbolted to it, is a rearframe consisting also of opposite side framemembers secured together by cross members, this frame being arranged tosupport a delivery belt 8 which is intermittently driven by a drum 9 andwhich passes at the rear end of themachine around an adjustably mountedidler roller 10. In the present instance my machine is arranged to bedriven by an electric motor, to which end the shaft of the motonll,which is supported on cross frame members, is connected by a belt 12with a pulley mounted on the driving shaft 13 of a variable speedtransmission mechanism which need not be particularly described, as itforms no part of my present invention. This. mechanism transmits powerto a shaftlet, the latter shaft being in turn connected by means of asmall sprocket Wheel 15 secured thereto and a chain 16 with a largersprocket 17 which is secured to a shaft 18 journaled in the oppositelower side'members of the machine frame. To this. shaft 18 is keyed asmall sprocket wheel 19 which by a chain 20 is connected with a largesprocket wheel 21 on a cam shaft 22, this latter shaft being the mainshaft of the machine through which movements are imparted to theprincipal parts of the machine. The shaft 22 is connected by gearingwith a shaft 23 in such manner that while the former shaft is rotatingtwice the latter shaft will be rotated a single time, and in order toproduce a regularly recurrent variation in speed of the latter shaft Ihave in the present instance employed an eccentrically mountedellipticalv pinion 22 secured to the shaft22, intermeshing with an ovalpinion 23 disconnectibly secured to they shaft 23, the last mentionedpinion being centrally mounted and having twice the number of teeth ofthe pinion 22*, thus producing during each revos lution alternate phasesof acceleration and retardation in speed of the shaft 23.

The drum 24 by means of which the con-v 7 to the shaft ofthe (111K119; a

The npp'erreach of the conveyor belt;' v. v

links 55%55' with; the rear. corners off a "22 a connecting rodifllVeyo'r belt; marked Tis. intermittently driven, is securedlte a shatt QejOnr-naledinapair of opposite loracketsQSsecured'to I I I g i Sp-Themeans for reciprocatingthe slide in the necessary timed relationshipcomprises 1 1: anf-e'ccentricj49 secured toft'he cam shaft 22,; anclia:pitinan rod .50 :pivota'lly connected at "'tsforwazid en'd'to theforked upper end of n-oscillating bar 51 rotat'ably mounted'on crosssha'ltf52yto which latter is pinned an the machine frame; and isa'ctitated' 'through connections Comprising a crank pin 27 carried by .adisk 28 secured to th'e eam shaft and to an oscillatingframe' ilfl;seconr connecting r'o'd which fisfp'ivoted to a l J2! a ust;

pivot 32 having a "base engaging an a ing screw 32 'monnted insa' ose''ati ng frame .30 and an oscillating lever 33floosely pivoted on mshes-24a and-equippedfitfith pa pawl-- 25% arrangedfltorcooperatewitljij a .15.

ratchetwheel 35"securecl,tosaid shalt.

The delivery belt is actn'atedin 'a' 5 similar iinanner, through a'conn'ectingrod 36 connected to the oscillating-frame above men: tionedand also connected to ianoscillating lever 37 which is equipped with apawl adapted to turn 'a ratchet wheel 39 secured runs overthe tsurtaceo'f: a series ,of sheet so, a l and 42, supported by -L}shapedf braek-"ets 43 mounted onjcrossrodseeextending across the machine between theupper side IEEQIHQbaTS/ V V The cake magazine at the front end of'themachine comprises a series-of connected'vertical holders 45 adapted toreeeivethe cakes stacked in vertical -St3, CkS, tl"f91frO1flt sides *ofthe holders being cut away vert i;cally "to facilitate the Work Y ofkeeping the holders supplied with cakes oy attendants ""(jfrtllcmachine. Thei inat az ne is rembtalole ias unit, in order thatyheinter'cfhangeahlc and the 'niachi ne may upon cakes. or W'Et'iGfS -0idifferent-sizes and .of across-bar 45 supporting the'magazine sections,"such sleeves be ng arranged' to slidin -ly engage stationaryrscrewthreaded posts e5 Whichf latter ;a1 e provided above and belowthe;sleeveswidth-nuts by meansof which thevmagazine maybe adjustably" Pthe wafers being operated Upon, and the penings 57 of the .plate56 :otthe first or EK-Jullifll at any "desired elevation ahovea table 46;This; table-is supported by" oppofl,

site brackets 4:7;secnr'ed: to the side members of the frame of theinachine the table bea inn arranged immediately over the front endof-thetop reach of the-eaiTieiebelt. The

space "between the vtable and bottom of the holders'is snfheicnt topermit a single row otcalzes to be Y I ed rearwardly from the bottomofthc s its by aremovableare'oip- ,rocating slide 48 of slightly lesstl'lickness than a single cake, and deposited iipon the edges of helideis notchedte center; and

lali'gn the voted to said pin adapted} to operate I jakes as theyiaretransferred from the magazineftoj the surface of the carrier.tales: w

"oscillating': frame*53,itl1e shaft 52' being j-ournaled oppositebrackets 54 secured to 'IIIQL'ChlDO :frame. This frame 58 vhas a 'forementioned. The'upp'er endsofthe side I V bers of the frame 53'' areConnected by 47 'alooire mentioned; to j which fr ani'e is s'efloured--theslide 48'. fByc adjnstment o f *the screw f53 the throw?of"'theslide 'c8; can be 7 a Tl'ie- -niechanisin by means of tvhich I theconfection i's 'applied; toth'e cakes may next laterally from, theionr"corners 'of' such box I fanclarrangedjto seat iip'on andfbe' secured to1 I v 'the posts. The lo'ott'om of eia'ch stencil lo'oX snapes, and 1ssupported-by Ineansot' orii 7 l w is in the "resent instance thou hnotnees' heed sleevesaii seouredtot'he oppositeends p Y a r s'ed n hes m Plae; t e center l or stencil plate proper, being formed ith".

aji'ow otgstencil;openings. V I f Tllef SteI ldll openings? in bothstencil correspond in. shape to the shapeof forwai'clhox "are ofsomewhat. smaller size.

thanitheopenings 57 @of the ;plate, 5.6 of

entirely clear the 1 edgesof, the} particular ostencilgopening-oftheplatej56 ofithe second 'co ating mechanism to-Which it ispresented whenvtheebelt gisfli fted'! for the "application of a secondcoating, and the top of such first deposit (marked 57 in Fig. 19) willlie below the plane of the top of the plate 56, to provide space for thesecond coating to be applied.

To provide for interchanging the center plates, or stencil. platesproper, in order to adapt the machine for operating on cakes ofdifferent sizes and shapes, each stencil plate is beveled on itslongitudinal edges and locked between correspondingly beveled plates onits opposite sides, one of the side plates being arranged to betightened up against the stencil plate to secure it firmly in workingposition. One side plate, marked 256, is' stiffened along its innerlongitudinal margin with a bar 257 secured thereto, which bar slightlyunderhangs the bottom of the center plate, or stencil plate proper, andthe plate and bar are rigidly secured to the frame plate7. The oppositeside plate 258 is similarly stiffened with a corresponding marginal bar259, but is adjustably arranged between the frame plate and a backingplate 260 arranged longitudinally of the frame below such plate 258. Theplate 258 IS ad ustably secured to the frame plate by means of headedscrews passing through slots or oversize holes in the plates 258 and 260and by a pair of fastening and tightening devices. These devices eachconsist of an adjusting screw 260 bearing in the side member of theframe 7 and having swlveled connection with a-vertical flat cross-pin261 engaging at its bottom an integral slotted tongue 258 projectingfrom the plate 258 and at its top a similarly slotted tongue 262 securedto upper side of theplate 7 and serving as a fulcrum upon wh ch thecrosspin 261 may rock slightly in tightening up and releasing thestencil plate.

The front confection hopper 58 and rear hopper 58' are very similar,though not identical, in construction, and on the drawing correspondingparts of the two hoppers and parts associated with them will beindicated by the same numerals, except as otherwise particularlydesignated. Describing the construction of the front hopper, such hopperconsists of a cast open bottom base portion 59 adapted to sliderearwardly and forwardly in the stencil box, to'whioh base is secured aninner sheet metal upper portion 60 and an outer sheet metal portion 360connected at the top to form a closed water jacket adapted to be filledwith hot Water to increase the fluidity of the contents of the hopper, asuitable filling orifice and drain cock being provided to enable thewater to be supplied and emptied. At the bottom the base portion hasnarrow opposite inclined side walls 61 spreading away from each otherfrom top to bottom, and, connecting said side walls, also has verticalwheel is end walls 62, rising above the plane of the top of the sidewalls, the end walls being formed with bearings for the journals of thefeed rollers 63 and of a pair of oscillating feed plates 64. Since thefront hopper is intended for the application of rela tively stiffmaterial the walls 61 are further inclined from the perpendicular thanthe walls marked 61*, of the rear hopper, and for the same reason thefeed rollers 68 and feed plates 64 are essential only in the fronthopper. The two hoppers are secured together by a pair of side bars 65,and are slidingly reciprocated in the two stencil tion and one ofretardation. The shaft 69 extends but part way across the machine andits inner end is journaled in a bearing 70 carried by a vertical framemember 71 secured at top and bottom respectively to the frame members 5and 4 before mentioned. The inner end of the shaft extendsbeyond thebearing 70 and is provided with a crank 72. On the opposite, or innerside of said bearing a disk 73 is secured to the shaft 69, this diskbeing equipped with a pair of laterally projecting lugs 74 adapted tocooperate with a pair of similar lugs 75 projecting from the adjacentside of the sprocket wheel 68. The sprocket pressed .towards the disk 78by means of a coiled spring 76 which serves to normally maintain thelugs 75 in position to engage the lugs 74. The hub of the sprocket wheel68 is formed with a cam 77 adapted to cooperate with a stationary camlug 78 carried by a bracket secured to the frame of the machine, thearrangement and adjustment of the parts being such that as the wheel 68is rotated continuously though at a variable and T twill be inengagement during one half a revolution and will turn the crank 72 fromone horizontal position to a dia metrically opposite position, thecooperation of the cam members 77 and 78 serving to shift the lugs 75out of engagement with the lugs 74 as the opposite position is reachedand maintain such disengagement until the lugs 75 have rotated throughan arc sufiicient to cause them to clear the lugs 74, when the cam 77clears the cam lug 7 8 and the sprocket wheel is shifted to normalposition by the spring 76, after which the sprocket wheel 68 continuesto rotate through the remainder of the second speed-the lugs 75 I anorifice in the adjacent end of a bar102" extending transversely acrossthe top of the hopper, that is, extending longitudinally of the machine.The ends of the bars 100 and 100 are rounded, and the four rounded endsrespectively arranged to engage the upwardly inclined slotted cam armsof two pairs of oppositely arranged L-shaped levers 103 which are formedwith downwardly inclined arms secured at their lower ends to a pair ofrock shafts journaled at their ends in the adjacent ends of a pair of'U-shaped frame members'lOe arranged longitudinally of the machine andbolted to the frame posts 6 above the interposed supporting lugs of thestencil frame member 7. The rear rock shafts of the front and rearcoating mechanisms, marked 105 and 105" respectively, are provided, atthe left hand chine with rock arms 106-106 lying in one and the samevertical longitudinal plane; and the front rock'shafts, marked 107-107,respectively, are provided with similar rock arms 108-108 lying in anadjacent parallel plane. The rock arms 106-106 tively supported by posts109, 109 which are rigidly secured to a horizontal bar 110 whichintermediate such posts is rigidly secured to a downwardlyspring-pressed vertical rod 111, this rod having a forked lower endpivotally secured to a link 112 which at its forward end is pivoted tothe machine frame and at its rear end is equipped with a cam rollerarranged to engage a cam 113 fixed to the shaft 23. The shape of the cam113 is such as to initially lower the roller slightly and then drop theroller sharply off a shallow shoulder on the face of the cam once duringeach revolution, and immediately raise it again. The rock arms 108-108are similarly supported and connected byposts11411t, horizontal bar 115,vertical rod 116, link117 and cam 118, this cam being arranged with itscam shoulder diametrically opposite that of the cam,

113. The arrangement and adjustment of the parts and operatingconnections associated with the stripper pins is such that during atraverse of the hopper in a given direction the stripper bar and pinsahead of each hopper will be lifted by the action of the slotted arms ofthe L-shaped levers 103, while the stripper bar and pins following eachhopper will be lowered until they reach a point in alignment with thestencil openings, and as the belt is lowered (by'means later to bedescribed) the cam will operate to cause a brief but gradual initiallowering movement to the bar and connected pins of the two coatingmechanisms to disengage the coated cakes from the stencil openings andvthen give a short, sharp stroke to such bars and pins to disengagethepins from the coatings upon the cakes. Upon the shifting of the hoppersin the opposite direction side of the ma-' are respec-J the loweredstripper bars will rise and the other stripper bars and pins be loweredand actuated through the other cam and connections, and so on.

Between its intermittent longitudinal feeding movements, the belt islifted to carry the rows of cakes carried thereby into registration withthe stencil openings by means of two open top cushioned lifting boxes119 extending transversely across the machine in alignment with theforward and rear stencil plates and arranged to be lifted in the spacesrespectively lying between the table members 40 and 1:1, and 11 and 42.The boxes are each equipped with a pad of cushioning material, such as arubber apron over the top of the box, or an inflated rubber bag, (seeFig. 1) or a pad of soft fibrous material arranged therein, (as in Fig.7) to avoid crushing the cakes, or, if the carrier belt is somewhatelastic and the box sides are sufliciently wide apart to provide ayielding span, the cushioning ma terial may be omitted, see Figs. 1, 2,7 and 8.

The lifting boxes are carried by and secured to a pair of bars 128arranged longitudinally of the machine underneath the opposite edge ofthe belt, and the opposite ends of these bars are simultaneously liftedby connections similar to each other. These connections for lifting thebars and boxes are both operated by a cam 120 arranged to cooperate withcam rollers carried by the depending arms of a pair of two-armed levers121-121 pivoted to the opposite sides of the frame bracket 91 beforementioned adjacent the top thereof. The horizontallyextending arms ofthese levers are curved and arranged to support respectively blocks122-122 slidingly adjustable thereon, these blocks being connected byconnecting rods 123-123 with crank-arms 124 -124 con nected to rockshafts 125-125 journaled in bearings carried by the-opposite side members of the machine frame. Secured to each rock shaft is a pair of rockarms 126, 126 respectively arranged underneath the 0 pcsite sides of theconveyor belt, the front and rear arms 126 on each side being pivotallyconnected to depending posts 127-127 secured to the oppositeends of thebars 128 above mentioned. The connecting rods 123 have a telescopinghand-operated turnbuckle connection by means of which the verticalposition of the two boxes can be independently regulated to take up anylost motion between the particular box and the belt, and the throw ofthe curved arm of the levers 121 can be regulated by adjustment thereonof the blocks 122 to vary the lifting pressure against the cakes as maybe necessary.

The rectifying or aligning mechanism for truing up the cakes under thestencil openings consists of an oscillating frame com- 1 otallyconnected to the lower endot a yerv the side members of the ma thickerthan the other two i manoethree notched cross plates rigidly'secuhedi Ir I the forwardbars. and nude forming stops,

dle bars, marked130, and11-31 respectively being so arranged that upagainst them and be centered notches while they after the belt hastraveled.about twoethirds in the of its stroke, and the rear barl32being set relatively further to the rear so that the pairs of.sandiwichedl cakes ill notbr'ing up against it until just before the endof the" The. rear bar 1 which is is in the present belt movement.

instance hinged so that it may conveniently to gi-vefree access to th'e,"base of the rear magazineand the" pressure mechanism. The oscillating:titanic is gi ven an oscillating moyementhetween a "rear Ward elevated:position and: afterward low eredposition by means of .a cam 1'33 fiXedrto the cam shaft. EZZ-near the-left hand side This cam :is ar-range'd:to cooperate with a cam roller secured to "the;

intermdeiate portion DI -Call. oscillating lever:

be thrown back of the machine.

131 which is pivoted :at' its front enid to' the machine frame and atits rear end is :piv;

tical connecting link 13.5 pivoted at its p per end to thehorizontaljcrahk member 1 the upper side bars 0:15 the 137 journaled inTo the oppesiter end oitatfhe machine frame;

shaft 137 is secured a rock. .arnr l3z8 panallel (marked 13%); 0f: thetwo, side bars 7 12.9 a

with the other shapeel lever, and the y of the oscillating frame arerespectively p o l y em ectefl w h: the. olfi; .he

arms-l381and 1'39. The: rearfends (Ext theitw side bars are similarlysnppontedby' arms 140 1'40'fi-Xt3djt0' a: rock ,Shfif which is journaledin bracket exften si s ioi":

The rear cake magazine; 142,1 located rear Wardly' of thefrear coatingmechanism, is

similar in construction tetheforward maga- Z1116" above deser1bed,independently V 22. This cam is .arrangedte-cooperate with acam rollercarried at the end of the lower horizontal arm 145 of abelleerankIletter which is pivoted to a bracketazllt secured to;

*am L,

the front cross-plate v3' of themachin a verti al: arm 14H oe saihlahellcr ifli being; pfi-votally connected by ahoclQ-MS lit 11.13116 lower"end of a depending stirilrgstressed.

he" hro w shaft, the; upper the cakes will bring:

are in 101wcred;positron surfaceoiE a stationary table 148*,

bar "132, the cross r other rock arm by a set screw.

of a V-shaped lever secured to a crios's shaft" w-a ndly: extending. Igages-,a stationary bracket 157 on the 1111a. "chine irame, this frame154' haVi-ng-ase-ries "of vertically disposed pins T1158" equipped j,

t ey coi jisto but its'ifeecli slide; r pe ated l and differentlypairioi cant blockslfiO carriedby an 5; F timed through.connectionscQntroillled by egg-shaped cam 14a secured tothe'camsha'ft;

spectively near the opposite. endsot the.

ends of the arms being; connected by an adjustable cross rod. on whichare pivoted bearing lugs ei;,tending'forwardly from aTU-shaped frame15?) to whichthe notched ."feed .slide is se-- cur-ed, This feedslideis;- secured-to the. frame by] thumb screw s passing through slotsformed; in'the ends of the slide, to. pro: ide for adjustmentiof suchslijdelongitu 5 dinally .of the machine.

below the accurately with the notches ofathe re. "stop 0d 152 isequipped with and plays over the,

imagazine, to provide for lateral adjustment ottheslide sothatit'srnetches all registercollars 152 preventingsidewise. movement 1V of the f-LI'EHHQLQSB, and StIC-hllOldhas atln eaded engagement.with]theleft-hand-,rock armf 1-51, andiis arranged; to "besecuredl:toutlie.

In order to press-the- GOV-er proper contact rwithfthe coated cakesiandprod uce sandwiched wafers of uniform thieknessl have provided a seriesof pres sureniem ersjwhiehare arranged to: descend upon'the cakes atthe'cnd oif eachieeding movement of the belt and at-the time they areconfinedrbetweentherslide 1 13 and, rear stop: bar 182, anda 'e alsoarranged toll-ave wtthBJ-lHliUQf their; downward movement-a V slightrearward InCWement,v to carry the cakes nearwjardlyand-thus seatandcenter hem. a urately inv rtic al alignment with eachi other in thenotches. oi thesrear stop takes into e To this end I "employ a ve ti a y3 pending 01 guide hod156frwhich en- I with GQntaQVmembers lag-adaptedto enarie eushi ollelti anl the? present. instance 5!; is named andlowered byineans of ,fl2w1ne115 ciliatingrock sh-afit 1 61 j onrnalledin 'tlieside members of. theanachine frame; andlengag: ing ithe.;u;-,sliaped low 'torlircl ends,*ai1dl suchiirame is given rwar d in'oiement zit-the limit of 1 its ardifmoveinent f means-jot aparr o-icontactblow is inevahle qu-shapelirame having deked side ba1 s.-1,55,. and an lpi erted rubber cups; ,1 Th

"162 which,"

lie, tgofuit'sjide the-planes of cams-T1160;

aneiarranged tocooperatew-itlrlugs v nR- "w-l l eeted atrone eed to a 116.5 secured-to the outer end oi Iv extending outwardly from "theforward memberselfthefiiorked.lower-ends of thes'idef 1 elf firemeherock rshaitilfill Vi Y n'oscillat' g movement by iheans oi 1 the I with1e;

the i on r ankp lfifiasect. echtothe- Lu? 61, 1 cranks; heingisuch asto.cause 1011,3 9

of the rock shaft of about one hundred and twenty degrees. The cams 160are of such shape as to initially lift the frame from its loweredrearmost position. and then force theframe to forward position duringthe latter portion of its rising movement, and then lower it in forwardposition, the contact block 162 acting at the end of the downwardnovement to kick the frame rearwardly with the effect and for thepurpose already explained. The frictional contact of the cams 160 in theforked. ends of the side bars, as the crank .166 rocks forwardly and theframe is lifted, tends to roll theside bars forwardly and thusyieldingly stresses the cakes toward and against the rear stop bar 132.

To enable the hopper shifting mechanism and knock-out pins to bedisconnected and stand idle while other parts of the machine are beingshifted in timed relationusually by hand-in changing or adjusting thefeed plates, stop bars and stencil plates so as to correct inaccuraciesor adapt the machine to operate upon wafers of a different size, I mountthe oval pinion 23, to which movement is imparted by the pinion. 22 andconnections heretofore described, upon a hub 23" provided with oppositelugs 170 arran e-pl to cooperate with notches formed upon a slidingsleeve 171 engaged by the ends of a cotter pin 172, carried by andsecured to a shifting rod 173 which is slidingly mounted in an axialbore in the shaft 23, the cotter pin extending through opposite slots insuch shaft. A hand lever 174 is provided for shifting the rodlongitudinally so as to bring about engagement or disengagement of thelugs 170 of the hub 28 with the notches of the sleeve 171, and thuseither clutch the gear 23 to the shaft 23, or permit it to rotate idlythereon.

It will be understood that the alternate periods of rest and movement ofthe carrier belt are equal, and that during each period of rest the beltis first lifted to present the cakes to the stencil openings, the

hoppers then shifted across to the opposite side of the stencil box toperform the coating of the cakes, and the belt then lowered and theknock-out pins depressed in their final sudden stripping movement, afterwhich the next feeding movement of the belt takes place. The preliminarymovements of the knock-out pins and the movements of the feed rollersand feed plates in the front confection hopper are coincident with themovements of the hopper.

If it is desired to produce wafers having but one layer of confection,one coating mechanism only (usually the front one) is employed; and ifit is desired to produce a coated wafer, whether single coated ordouble-coated, without a cover wafer, the

front cake magazine only is supplied with wafers. My machine istherefore adapted to produce a variety of products with no change otherthan a change in the materials supplied or operated upon, though ifdesired certain of the parts operating idly in making some of theproducts may be disconnected. By suitable changes in the shape of thestencil openings and corresponding changes of the notched feed platesand stop bars, and by adjustment of the height of the magazine, ifrequired, the machine may be adapted to operate upon cakes of differentsizes and shapes, as square, oblong, oval, round, etc, and of differentthickness, and a great variety of products may readily be produced.

It will be understood that while the par ticular embodiment of myinvention above described is a relatively short, compact machine, inwhich the two coating mechanisms are arranged near together over asingle carrier belt, the described construction does not exclude fromthe scope of the claims (except as necessarily inherent in the recitedstructure) other constructions and arrangements having more widelyseparated or independent coating and cake-conveying mechanisms arrangedto operate in syn chronisin for the purpose and in substantially themanner described.

I claim:

1. In a machine for coating cakes, an endless intermittently movablefabric carrier belt arranged to receive cross rows ofcakes, coatingmechanism including a stencil plate having a row of stencil openings inalignment with rows of cakes at their periods of rest, and a liftingmember having spaced front and rear lifting edges at opposite sides ofsaid stencil openings and arranged to reciprocate vertically to liftsaid belt and bring the cakes thereon into cushioned contact with saidstencil plate around the margins of the stencil openings therein. 7

2. In a machine for coating cakes, a cake supporting table having atransversegap, an endless intermittently movable fabric carrier beltarranged to travel over said table, means for imposing cross rows ofcakes on said belt in position to stop in vertical alignment with saidgap, coating mechanism including a stencil plate having a row ofopenings in vertical alignment with said gap, and a lifting member having separated front and rear lifting edges adjacent the opposite edgesof said gap and arranged to reciprocate vertically to lift said belt andbring thecakes thereon into cushioned contact with said stencil platearound the margins of the stencil openings therein. r V

3. In a-machine for coating cakes, a cake supporting table having aplurality of transverse gaps, an endless intermittently-

